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Established 2004

Ruddlesden geotechnical

Ruddlesden geotechnical provides ground investigation, geotechnical consultancy and contamination assessment services.

Based in Exeter, but covering the whole of the UK, albeit primarily concentrated in the South West, Ruddlesden geotechnical was formed in 2004.

Ruddlesden geotechnical works on behalf of a wide client base, including local, regional and national housing developers, housing associations, commercial developers, building contractors, structural and civil engineers, architects, building consultants, quantity surveyors, local authorities and private individuals.

Development projects range from single dwellings and extensions to large housing estates, multi-storey flats, offices, industrial units, roads, slopes, schools, hospitals and basements.

The services and projects listed on this web-site provide an indication of those undertaken by Ruddlesden geotechnical, but others are carried out. If your requirement is not readily identifiable on this web-site, please contact us as we may still be able to help you.

  • AGS
  • Constructionline
  • CSCS
  • SMAS
  • ECFC trust

Latest news

Recent projects

  • Latest news

    27 Aug 2026

    LiDAR, UAV and GIS used for Slope Stability Assessment

    Geoff Davis has recently been working on another coastal caravan site with slope stability problems.On this site, Lewis Brown Chartered Land Surveyors used remote sensing (LiDAR (Light Detection and Ranging)) from a UAV (unmanned aerial vehicle) to help understand the locations and magnitude of ground movements.Ruddlesden geotechnical then used GIS (Geographic Information System)  to highlight areas of concern, to quantify the degree of movement, which might have otherwise been missed.These technologies have been great in helping us understand the landslide processes at this site and, equally importantly, convey to others what is happening. However, they are of little use without a detailed understanding of the geological and geomorphological processes, which inform the all-important ground model, i.e. they should be seen as a useful tool to help us understand and communicate landslide processes, rather than a replacement for the understanding of them.

    LiDAR, UAV and GIS used for Slope Stability Assessment
    LiDAR, UAV and GIS used for Slope Stability Assessment

  • Recent projects

    Contamination Remediation Strategy Outlines Requirements for Residential Development

    In order to satisfy a planning and NHBC land quality conditions, Ruddlesden produced a contamination remediation method statement, which summarised the contamination risks across the site and set out a clear and structured approach for remediating the site for the developer, to satisfy regulators and warranty providers. Ruddlesden geotechnical had previously undertaken a Phase 1 and Phase 2 contamination investigation and assessment, which had indicated that the site was covered by surficial thicknesses of made ground containing loose fibres of chrysotile asbestos. Additionally, several underground fuel storage tanks and a historical air raid shelter, filled with asbestos containing materials (ACMs). The remediation strategy included excavation and removal of the underground fuel storage tanks and ACM, to be undertaken by licensed contractors, together with capping of garden areas with 600mm of clean soil underlain by a geotextile membrane. The remediation strategy also outlined the validation testing requirements, which were subsequently undertaken by Ruddlesden geotechnical.

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  • Recent projects

    BRE DG 365 Soakaway Testing, Cornwall

    In-situ soakaway testing was undertaken in accordance with BRE DG 365, as part of a wider geotechnical investigation and contamination assessment for the residential redevelopment of land near Newquay, in Cornwall. The testing was undertaken using machine-excavated trial pits, with a tractor-towed water bowser used to provide the large volumes of water required for testing. Where practicable, Ruddlesden geotechnical use local plant hire firms and agricultural contractors for all of our ground investigation work. Ruddlesden geotechnical worked closely with the consulting engineers to ensure that sufficient information was provided for surface water drainage design. Due care was taken to appease local stakeholders, siting the test locations to minimise excessive disturbance to existing agricultural land and ensuring that all test locations were reinstated with the upmost care to mitigate against any future damage to agricultural plant and/ or livestock.

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